package com.yvon.service.demo.algorithm.offer.ext;

public class Node {
    public int val;
    public Node left;
    public Node right;

    public Node() {}

    public Node(int val) {
        val = val;
    }

    public Node(int val,Node left,Node right) {
        val = val;
        left = left;
        right = right;
    }
}
